Question

what is inter language?

Answer 1

An interlanguage is an idiolect that has been developed by a learner of a second language which preserves some features of their first language, and can also overgeneralize some L2 writing and speaking rules.

Answer 2

a language or form of language having features of two others, typically a pidgin or a version produced by a foreign learner.

"the interlanguage of Dutch learners of French"

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